Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 514 · 40 questions

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

1. 1.True or false: sugar in warm water dissolves faster. (a) True (b) False
2. 2.True or false: a mirror is needed for the dissolving test. (a) True (b) False
3. 3.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) table salt (d) sand
4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar in warm water
5. 5.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) two clear glasses (d) sugar
6. 6.🥄 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) sand (d) sugar
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.True or false: sugar in icy water dissolves faster. (a) True (b) False
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
12. 12.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) poke it with a finger (d) smell it closely
13. 13.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a mirror (c) cold water (d) sugar
14. 14.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) small pebbles (d) sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the amount of sugar (c) the kind of sugar (d) the water temperature
16. 16.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
19. 19.🥄 Which of these does not dissolve in water? (a) food colour (b) cooking oil (c) sugar (d) table salt
20. 20.True or false: sugar stirred well dissolves faster. (a) True (b) False
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it floats up (d) it turns blue
22. 22.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the kind of sugar (c) time to dissolve
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
25. 25.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
27. 27.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) a comb (d) a magnet
28. 28.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
29. 29.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
31. 31.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
32. 32.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
33. 33.True or false: sugar in warm water dissolves slower. (a) True (b) False
34. 34.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) particles move faster (d) sugar likes the dark
36. 36.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) sawdust (d) table salt
38. 38.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
40. 40.True or false: sawdust dissolves in water. (a) True (b) False

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